Assignment 6 Chapter 6 : Data Collection, Management, and Analysis Flashcards
In a tree structure, the data are organized in:
- a logical hierarchy
- a set of related tables
- a “schema” maintained through indexes and pointers
- a linked list.
Answer (1). A logical hierarchy.
In a tree structure, the data are organized in a logical hierarchy.
A set of related tables is a relational structure.
A “schema” maintained through indexes and pointers is a network structure.
A linked list is not a DBMS structure.
In a network structure, the data are organized in:
- a logical hierarchy
- a set of related tables
- a “schema” maintained through indexes and pointers.
- a linked list
Answer (3). A “schema” maintained through indexes and pointers.
In a network structure, the data are organized in a “schema” maintained through indexes and pointers.
A logical hierarchy is a tree structure.
A set of related tables is a relational structure.
A linked list is not a DBMS structure.
A Relational database structure offers the advantage that:
- They appear as flat files and are less complex than other structures to establish and maintain.
- They usually offer greater processing flexibility.
- Records can be selected, combined, and processed in a variety of ways based on their relationships
- All of the statements above outline benefits of a relational database structure.
Answer (4). All of the statement above outline benefits of a relational database structure.
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All of the options outline advantages of a relational database structure.
Which of the following definitions is correct?
- A range check is performed on qualitative data valuations
- Ad hoc checks are developed by the computer supplier to correct problems discovered in the system during data collection.
- Value checks are performed on numeric data to determine whether the value is consistent with allowable values.
- Soft edits are used to identify values that are usually wrong but may be correct in certain circumstances.
Answer (4). Soft edits are used to identify values that are usually wrong but may be correct in certain circumstances.
Option (1) is incorrect, because the range check is performed on numeric data elements to determine if the values fall between a specified minimum and maximum value.
Option (2) is incorrect, as ad hoc checks are user-developed, not developed by the computer supplier.
Option (3) is incorrect, as value checks involve checking the value against a list or table of allowable values. Values not on the list are rejected.
Option (4) is the correct definition for soft edits.
Please refer to the following data:
What i’s the expected field production rate per field collector for the project’s six-month (round your parcels per day to the nearest unit)?
Answer (3) 1,560 parcels
Hoopla Merryweather is the manager in large and bustling assessment office. In the next 20 weeks, Hoopla must collect data on 35,000 residential parcels. Due to flex days, his staff work only 4 days per week.
Hoopla’s office has an effective production rate of 6 parcels per day.
What is the approximate number of data collectors required? Also, if Hoopla wants one supervisor for every four workers, approximately how many supervisor does Hoopla required?
(1) . 73 data collectors and 18 supervisors,
(2) . 39 data collectors and 10 supervisor
(3) . 59 data collectors and 15 supervisors
(4) 68 data collectors and 17 supervisors
Answer (1) 73 data collectors and 18 supervisors.
Susan Gunderson is a well-known socialite in Scarborough. Susan intends to have lavish parties, so she recently had very expensive landscaping carried out in her backyard. To categorize this high-quality landscaping as a variable, an appraiser can utilize three dimensions; quantitative or qualitative; continuous, discrete, or binary; and objective or subjective. Which of the following is the best categorization of the quality of Susan’s landscaping?
- Quantitative, discrete, and objective
- Qualitative, discrete and subjective
- Quantitative, continuous, and subjective
- Qualitative, binary, and subjective
Answer (2) Qualitative, discrete, and subjective
The appraiser will categorize the quality of landscaping to be qualitative. This particular qualitative measure would be subjective because it is based on the appraiser’s opinion and judgment.
The quality of landscaping is most likely discrete because it is not measured (i.e., as in number of square feet), but would more likely have to be coded using numerical values, e.g., outstanding = 6, excellent = 5, good= 4, average = 3, fair = 2, and poor = 1).
In addition to the swimming pool, a pool house was built to serve as guest accommodation for Susan’s friends who over-indulge at her parties. The pool house has stucco walls.
How would an appraiser categorize the wall type of Susan’s pool house?
- Quantitative, binary, and subjective
- Qualitative, continuous, and subjective
- Quantitative, discrete, and subjective
- Qualitative, discrete, and objective
Answer (4) Qualitative, discrete, and objective.
The wall type involves a qualitative description, such as “wood framing with stucco finish”.
The wall type is a discrete variable because there are few wall types.
Finally, the wall type is an objective characteristic as is can be directly observed.
Overall, Susan has developed a fantastic and extravagant backyard, including a pool house and a swimming pool in the shape of a swan.
How would an appraiser categorize the overall architectural style of both the swimming pool and the pool house?
- Quantitative, continuous, and objective
- Qualitative, discrete, and subjective
- Qualitative, binary, and subjective
- Quantitative, binary, and objective.
Answer (2) Qualitative, discrete, and subjective
The architectural style of both the swimming pool and the pool house is a qualitative description because it is based on the appraiser’s subjective opinion on its attractiveness to the market.
The architectural style is a discrete variable because a rating scheme can be used to express the quality of the design.
A control form is designed to provide control and summary information to the assessment office.
Which of the following options is NOT information that would be included on a control form?
- The number of parcels, including a breakdown by property type
- An accurate depiction of the parcel density factor, complexity factor, and callback factor.
- A list of dates corresponding to certain activities which were completed by various personnel
- A list of parcels still requiring work.
Answer (2) An accurate depiction of the parcel density factor, complexity factor, and call back factor.
The parcel density factor, complexity factor, and callback factor should not be included on a control form; these factors are instead used to calculate production rates.
A control form could include identification number of units, field and office functions, commercial cards, incomplete fields, market data, and cards temporarily pulled.
